Hi Paul!

Have had these units sitting on my shelf for 10 years or so. I
believe both of them have circuitry that measures resistance
across the plug gap, and adjusts voltage accordingly.
The big blue coil pack has a 300v input.  The black coil in
the second photo is likely similar. The smaller blue unit in
the second photo plugs into the high voltage output of the
stock coil and is used to trigger the main ignition controller.
They each do multi spark at lower rpms.

If you can use one or both of them for design purposes, I will
figure out a way to get them to you. I think they could be used
as a waste spark system by doubling the output connector.
The current auction price for one of these is only about $70,
ten times less than when new. So they are hardly worth selling.
They were advertised as a consumption reducing device due to
the much higher output current and voltage. They are on the heavy side.
I have a few other high voltage input coils form old performance
setups. Never have trouble with fouled plugs with these.

Ed Carver


Sure Ed. I'll keep them around and if the opportunity
presents it self I'll test them.

Paul Lamar

I was wrong, that blue coil has a 600 volt input.

Ed Carver

All the better :)

Paul Lamar